Riveter for ledger plates



July 25, 1950 E. W. WALDIE RIVETER FOR LEDGER PLATES Filed Aug. 6, 1946 EARL WELINGTO ATTORNEY.

INVENTOR. u WALDIE,

Patented July 25, 1950 UNITED STATES PATENT OFFICE The present invention relates to riveting tools and is more particularly concerned with a riveter for use in changing the ledger plates of an agricultural machine, such as the cutters'of a harvester.

The primary object of the invention is to provide a device of the character referred whereby ledger plates can be changed without removing the guards.

Another object of the invention is to provide a simple and inexpensive riveting tool which can be readily operated.

A further object of the invention isto provide a device of the character referred to of simpler and more compact construction than prior devices.

With the foregoing and other objects and advantages in view the invention consists of the novel construction and arrangement of parts hereinafter described and claimed.

In the accompanying drawings illustrating the invention,

2 Claims. (01. 78-535) At a suitable distance intermediate the said member and the yoke is a round perforation into which is threaded perpendicularly a riveting tool 7 in the form of a bolt I8 with a square head l9,

Figure 1 is a perspective view of the riveting tool in operative position on a cutter bar.

Figure 2 is an enlarged side elevation of the tool.

Figure 3 is a vertical transverse section on line 33 of Figure 2, and

Figure 4 is a vertical transverse section on line 4-4 of Figure 2;

Like numerals, as used in the description and drawings, designate the same parts of construction.

I0 refers to the body of the tool, which is a rectangular bar constructed of metal or other suitable material. Its length is sufiicient to extend a suitable distance back of the cutter bar II when the device is attached to a guard finger I 2, as hereinafter explained.

Pivotally attached to the front end of the bar III, by a pivot bolt I3, is a depending yoke l4 designed to fit on the guard as illustrated in Figure 1.

Mounted on the bar I0 is a slidable clamping member l5 designed to engage the back of the cutter bar and, in association with the yoke l4, clamp the bar In in operative position.

The member I 5 consists of a rectangular sleeve to fit the body of the tool and a depending integral hook 16 which is rectangular, with its horizontal arm projecting inwardly, in the direction of the yoke. It is adjustable on the tool body, which is lightly scored transversely to form shallow notches on the top side, as at IT, for engagement with slight transverse serrations on the inside of the sleeve of hooking member I5.

a for a wrench hold, also to serve as a hammer With this device the aforesaid operation is accomplished by securing it in position and then upending the cutter bar. By substituting a bolt with a smaller reduced end the tool can also beused as a punch to remove rivets.

As different embodiments may be made of this inventive concept and modifications may be made in the embodiment herein-before shown and described, it will be understood that the matter herein is to be interpreted as illustrative merely, and not in a limiting sense.

What I claim is:

1. A rivet bucker for use in bucking a rivet in a ledger plate on a guard finger on a cutter bar while the guard finger is in place on the cutter bar, said rivet bucker comprising a longitudinally elongated bar of sufficient length to reach from a point near the forward end of the guard finger to a point beyond the rear edge of the cutter bar, the rear end of said bar being squared, means depending from the forward end of said bar for embracing the guard finger in a manner precluding rearward longitudinal shifting of said bar relative to said guard finger when engaged therewith, a cutter bar clamping member comprising a squared sleeve conformably and slidably telescoped upon the squared rear end of said bar and a hook depending from said sleeve to abut the rear edge of said cutter bar and engage the undersurface of said cutter bar, said clamping member being adapted to be moved forwardly on said bar to abut the rear edge of the cutter bar in opposition to the engagement of said guard finger embracing means whereby said bar is precluded from shifting longitudinally in either direction, and a bolt threaded downwardly through said bar in vertical alignment with the position of the rivet in said ledger plate and guard finger and terminating at its lower end in a rivet engaging terminal, said bolt being arranged to be turned to vertically adjust the same to engage said terminal with the rivet and elevate said bar to forcibly engage said hook with the undersurface of said cutter bar and tighten said embracing means on said guard finger whereby the upper end of said bolt can be struck with a hammer to accurately deform the rivet.

2. A rivet bucker for use in bucking a rivet in a ledger plate on a guard finger on a cutter bar while the guard finger is in place on the cutter bar, said rivet bucker comprising a longitudinally elongated bar of sufiicient length to reach from a point near the forward end of the guard finger to a point beyond the rear edge of the cutter bar, the rear end of'said bar being squared, means depending from the forward end of said bar for embracing the guard finger in a manner precluding rearward longitudinal shifting of said bar relative to said guard finger when engaged therewith, a cutter bar clamping member comprising a squared sleeve conformably and slidably telescoped upon the squared rear end of said bar and a hook depending from said sleeve to abut the rear edge of said cutter bar and engage the undersurface of said cutter bar, said clamping member being adapted to be moved forwardly on said bar to abut the rear edge of the cutter bar in opposition to the engagement of said guard'finger embracing means whereby said bar is. precluded from shifting longitudinally in either direction, and a bolt threaded downwardly through said barin vertical alignmentwiththe positionof the rivetin said ledger plateand guard finger and terminating at its lower end in a rivet engaging'ter minal; saidbolt being arranged tobe turned to vertically adjust the sameto engage said terminal with the rivet and elevate said bar togforci-blyengage-saidhook. with the undersurface-of said outter bar and tighten said embracing means on said guard finger whereby the upper end of said bolt can be struck with a hammer to accurately deform the rivet, the upper surface of said squared rear end of said bar being formed with longitudinally spaced transverse notches and said clamping member sleeve being formed with means for selectively engaging said notches to hold said clamping member in a selected position on said bar, and said guard point. embracing means comprising a bail pivoted transversely on said bar and having an internal diameter less than the external diameter of an intermediate part of said guard finger whereby rearward longitudinal movement of said bail relative to said guard finger is limited and said bail can act in opposition tosaid clamping member in holding the bucker in place.

EARL WELINGTON WALDIE.

REFERENCES CITED I The following references are, of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1 ,257,786 Berk Feb. 26, 1918 1,415,451 Jones May 9, 1922: 1,447,768 Dover Mar. 6', 1923' 2,072,021 Boyer Feb. 23, 1937 2,164,283 Mulvaney June 27, 1939; 2,322,830 Conner 'June 29; 1943 

